I'm not sure what physically gifted really means when you're a QB. Obviously, if you are fast, etc., then yeah people like Cunningham, Vick and even Cam Newton qualify. Is it who throws the best ball? Um, maybe Jeff George? Who has the strongest arm? Jamarcus Nelson.
If it is who throws the ball incredibly quickly and accurately, then it is Dan Marino.
But there's so much more to it. Who moves the best around the pocket? Marino and Tom Brady.
Who is most like Marino in terms of throwing the ball well downfield accurately? Rodgers, and maybe Bret Favre right behind him.
If it is who combines all the things you want to see in a QB (movement around the pocket, quick release, accuracy, strong arm, reading and baiting the defense, poise, toughness, etc.)?
Brady, then Montana, and Marino in 3rd with Peyton Manning in 4th. I haven't seen Rodgers comman this part of the game yet.